Mills



M. B. MILLS.

WEIGHING MECHANISM.

APPLICATION min APR. 14. 1919.

UNI D TATE A NT OFFICE non'rmnn n. .MILLS, of cartilage, ,Innmons,nssionoa' To innannn'r s nxnns or cnxcn'oo, rnnmors.

wnreirme MECHANISM.

Beatification in e v RatentedMair. 16, 1920.

Annlieation mea apin 14, 1919. SeriaJ I No. eb'aaao;

To all'wlwuuitmayponceww- ,f-

Be it known 1 that I, MORTIMER? B. MILLS, a citizen of. theUnited'States ,..re siding at Chicago, in the county of Cook and Stateof Illinois, have invented a newjand useful Impro vement; in WeighingMechanism, of which the following is a specification.

My primary ,object is to provides novel, relativelywsimple, andpositively operating :scalamechanism, -which will fpresent. the

certain parts 'brokenaway; and Fig. 3,:1

view in elevation, lpartlysectional, oi. the lower endof the-mechanismshown in-E ig. 2. '4 represents a plate which in practice would besupported either from the standard (not shown) of the scalewhere,thescalc is of the platform type, inaceordance with common practice, orfrom a suspension member where the scale is of the suspension type, thisplatebeingqformed with a. boss 5 preferably cylindrical-4 and projectingfor wardlytherefrom. In this boss a she-ft G is shown to. be: jounnaled,this shaft-being equipped at its outer end with a pinion 7 meshing witha vertically movable rack 8 formed as a continuation of a rodhereinafter referred to.

Extending at the portion thereof'intermediate. its ends, over the boss5, is a flexible member 9 in theform of a band which, as also with thebands hereinafter referred to, should be of a material relativelynonstretchable under the weight of the objects which it is intended beweighed on the scale, and while any suitable material may be employed,it is preferred that the hands he made of shim-steel which is relativelyinelastic and which may be provided of a thickness of about threeone-thousandths inches andabout an inch wide. The hand 9 at itsendsextendspart way around, and is securely fastened to, rollers 10 eachhaving a radially extending arm 11. The rollers 10 are secured to theendsof a band 12 which extends partyway around the circumferences ofthese roller this band being interposed between the rouers'ena the; band9,-a'nd' preferably amnged as shown in Fig.

l, the rollers 10 by preference having the bands9-and 12 firmly: securedthereto by sezcuringthe ends of these bands in overlapped 4 relation inooves 13 in .therollers=10. The POI'lJlOIL/Of t e-band "12 intermediateits ends extends: downwardly between the rollers 10 and 1s looped atitsloweniendyas indicated at 14, a which portioniitrueiigages a roller 15,this rollerrextending th'rbughthe looped portion 14. The roller 15 ismounted on h shaft lfirjo rilalediatlitszends'in the upper ends of thevertically extending rods 17 apant'and-erran' d in paraillclrelatio'n,the lower ends of t ese rodsrbein connected with ithe upper endfoflaeylin en=18 through the medium {of stub-shafts-IQ there- ;on, the rackbar-{ 8 being formed as a continuation-of oneof the rods 17, wherebywhemthe cylinder E18 lowers ornraises, this rack bar, will have acorresponding movement and through themedium of the inion 7= rotatingthe shaftfi andconsequ'efi y the pointer 20 thereon whichisiaclaptedtomovc across, and cooperate ywith -a dial 21, thegraduations of Whichjrepresenting pounds being uniform throughout the.ezttentfofi the dial which jextends throughout .3608 andiinthe-particular arrangement shown weighs upjto 300 pounds.- Thle'lowerend of the cylinder 18 connects w'ith a rod 22 which in practice would?,=be J operativel connected with the weighing platform 'a platformscale; or a scale-pan of'asuspension scale. i

JThe lower extremities of the arms 1 1- are connected with-theendsoiacband 23, one end 'of which may be fixed to ione arm as representedat .24; and the' other preferably adjustably connectedwith the otherarm-as through the medium of an adjustable block 25 whichdirectlyconnects'with this end of the band 23 anden s at anelongatedslot 26 inthis block, wit Z'a screw-2Tscrewing into the arm 11, thisblock therefore being adjustable alo the arm .11 carrying it, forlengthening al gl shortening the "portion of the band 23.:extendinbetween the) oints of; engagement wit the-extremities of the arms 11.Theband 231 at the portion just referred to is looped as shown andenages with a roller 28 which extends throu h his looped rtion assh0wn,. .th-isroller being provide with a shaft 29st whichitis lournaled.i i ayoke aflcarriedz on the upper end of a rod 31 formed with a disk32 adapted to form a seat for weights 33. 1 The lower end of the rod 31is provided with .a piston 34 which extends loosely into the "cylinder18.

It will be understood from the foregoing of the rod 22, cylinder 18 rbds17,":m'cl r'ol er' l5, and consequently the pulling down on the band 12which in lowerthat the loweri witl1 ,'the rollers are rotated as stated;the arms 11 swin ing outwardly and in such movement lifting thepartsreferred tosus- ;gended from the looped portion of the and 23.

By constructing a scale in accordance with my invention 'the'pointerQOma be cause'd" to substant ally accurately: indicate the weight ofany-object Placed 'on the .platform; within the" weighing limits of thescale, and this, it will be-noted, is accomplished with a uniformlygraduated dial and without the use 'of a compensatin' 'cam;or the like,this being eifected by ma the looped portion of thitba-lld 23 oftherequisite length'and the parts snspendedfi'om' this loop of the reuisite weight, the length and 7 weight referre to beingdependent'upon'the conditiohs'" presented, as for exam Ie the numberof'pounds the scale is to weigh, the weight and length of the 1partsecc'entricall 'dis' osed on the-rollers 0, and the dea weight of theparts so ported b the bands 12-, and this may-be etermine if desired byactual test of the scale with difierent weights, the o eratorlengthening or shortening the ban 23 at its connection thro'ugh lock25'with-one of the arms 11 and up 7 lying or rmoving" weights 38 fromthe dis 32 as conditions may require; until 'the length of the band 23and the' weight it supports aresnchthat theinovement of the pointer 20under weight im osed bythe actimt'of'weight imposed on t e scale, willbe directly Proportional to the weight'of the objert,-t1e1'eforeindicating by the uniioimly-graduated dial 21,

The cylinder 18 preferably contains oil in whi'ch-thepiston34"reciprocates, whereby this mechanism operates to return to normalTposition 1) without objectionable gerkin w on the weight is removedfrom thescae r White hrive *il-liistr'ated and described a ga rbtglarcbnstructiin of 'Is'cgle meninges iig m 'injien ion,- 0 not'wis "to beintending to limit I rt-there -of ds iliable membtrs a tions betweensaid'weight and said oscillable the 'abcurate wei ht of the'article'. vi

to, ass-the same may be variously modified and altered without departingfrom the ,spirit of my invention, it beiii my intentlon to claim myinvention as fu ly and completely .as the prior state of the art willpermit.

What Iclaim as new and desire to secure by Letters Patent is:

1. In 'a weighing mechanism, the combination of a member adapted to beshifted by the a pplicatlon of-gwei htther'e'to, 'a pair 4 ependiiikeleinent enga "'ng said *oscillable members at points eccentric of theaxes of'sai'd' oscillable'meinbers and tending to'moi e the latter; andmeans for actuating is'ai'd oscillable "fin'embers mm said'first-namedmember in op position to said elementgrthe parts being so constructedand arranged that in the actua t-ion of "said 1 oscillable members"from; said mea;is, thepoints o'f engagement between said ioscillablemembers and said element move away fromeach other' ii'i ah upwarddirection positions hawthe sites of "saidcscillable' member'si 5 2.'Inawei hing mechanism, the 'co'inbination "of 21* member' adapted'tosbfe shifted the a licationfoit weighflthereto; a pair oscil a lemembers," a weight, connecmenibers, said connections being flexiblyconnected with saidbscillabl members ecceiitrical ly of-= the axes ofthe"latter, "and means for actuating said o'scillable members from saidfirst-named member; the parts being so constructed and arranged that inthe movement ofsaid oseillable members from said means, thepoints -ofengagement between said oscillable members and-said connections moveawa" 'from each 'other in an upward direction rom positions below theaxes of said oscilla ble-member's'.

3. In a weighing mechanism, the combination of'a member ads ed to beshifted by the ap li'cation of Wei tthereto,- a air of oscilla lemembers having-hurls ra i'atinig therefrom, a' weight, connectionsbetween said weight and said arms, said connections being flexiblyconnected with said arms, and means for actuating said oscillablomembers from said first-named 'member, the *parts being so constructedand arranged that in the 'movement of said oscillable members from saidmeans, the points ofengageme'nt between said oscillable members and saidconnections move away from each other in an upward direction frompositions below the axes of said osoillable n1embers.

4; In a weighing mechanism, thecombin-ation of a member adapted to beshifted by the application of weight thereto, affair of oscillablememberaa bahd connected at its ends with said oscillab'lememberseccentrical'ly of the axes of the-lattenawig'ht'sup ported fromsaid bandbetwden the'eiidsdf the latter, and means for actuating saidoscillable members from said first-named member, the parts being soconstructed and arranged that in the actuation of said oscillablemembers from saidmeans, the points of engagement between said oscillablemembers and said band move away from each other in an upward directionfrom positions below the axes of said oscillable members.

-,5, In a weighing mechanism, the combination of a member adapted to beshifted by the application of -weight thereto,a air of oseillablemembers having arms ra 'ating therefrom,- a bandconnected 1 at its endswith said oseill-able members eccentrically of the axes of the latter, aweight supported from said hand between the'ends of the latter, andmeans for actuating said oscillable members from said first-namedmember, the parts being so ,constructed and, arranged that in theactuation of said oscillable 'inembers from said means, the points'ofengagement betweensaid arms and said bandmove away from each-other in anupward direction from: positions below the. of. said,oscillable'PmemberS. ti;

6-. In a weighing mechanism}, the combinaa tion-ofn member adapted tobeshifted by lower portion of said the-application of weight-theretofapairof voscillable members, a band; connected at its ends with saidoscillable members eccentric'ally of the axes of-the latter, a weightsup.- iported'irom :said band betweenthe ends of the latter and formedwithin cross-member lying across, and supported'by, the lower portion ofsaid band, and means foractn'ating said oscillable -memb'ers from saidfirstnamed member, the parts being so constructochandarrangedthat in theactuationof-said osoillable members fromsaid means, the points ofengagement between said oseillable members and 7 said vband move awayfrom each other in an npw ard direction from positions below the axes ofsaid oscillableanemhem. V :.L i

'7. In a weighing mechanism, theeombination of a member adapted to beshifted. by the application of weight thereto, avpair of oscillablemembers having: arms radiating therefrom, a band connected at its endswith said arms, a weight formed with a cross member lying across, andsupported by, the band, and means for actuating said oscillable membersfrom said first-named member. the parts being so constructed andarranged that in the actuation of said oscillable members from saidmeans, the points of engagement between said (is cillable members andsaid element move away from each other in an upward direction frompositions below the axes oi said oscillable members.

8. In a weighing mechanism, the combination of a member adapted to beshifted by the application of weight thereto, a pair of first-namedmember actnate's saidoscillable membersinEoppositionto;;said weight, the

parts being so-cohstructed-andfarranged that invthevaotuation oi-saidoscillable members irmn-saidiband connection, the points of engageinentbetween said oscillable members and 'said connections;move away fromeach other in an upward direction, from positions below: the: axes ofsaid oscillable members.

9. Ea weighing? mechanism, .the combination of, a. adapted .tos'beShifted as bythe application ot weightthereto, a pairofi-oscillablee-me'mbers :a bandiconnect'ed at its endsawith saidiosoiliahle me b rs eccentrically so i..- the axes io'fathei latter, 3a.-weight snrzgort'ed from saidsbandibetween the ends of edattertttndiaband connection-between said firstmamed member and -saidfoscillablemembers engagingrztlirperipheries or said oscilla-ble members; in-opposition to 7 said;

weight, =the'parts being. SO'rCOIIStI'uCted and arranged that in theactuationtof said oscillable members: from" said ifirst-namedmemfbergithe- 'points .1 of connection between said oscillable membersand said band move away 'tromeaoh-other in anupward. direction frompositions below a'the-axes'of said oseillable members. 1 a

1110. In aweighing scale the combination of a. me mberx-adapted-.to-beshifted by the tlIiFllCfltlOll of .welghtthereto, a pairof osci able,members. having arms radiating therefrom, a'ldepending element engagingsaid arms at ointsecoenti'ic .of the axes of said oscill'able' membersand tending to move the lattertin one-direction, and means for actuatingsaid oscillable membersfrom said first-namedmember to swing saidarmsoutwardly, the ZPartswbeing so' constructed a'nd arranged that intheactuation'of said oscillable men'ibers from said means, the

, points of engagement'between'said arms and said element move awayfromieach other in an upward direction from positions below the axes ofsaid o'scillable members.

11. In a weighinglscale', the combination of a member adapted to beshifted by the application of weight-thereto, a pair of oscillablemembers having arms radiating therefrom. a band cnga 'ng at its endssaid arms cccentrically 0 the axes 'of the latter, means supported fromsaid band between the ends of the latter and tending to move saidoscillable members, and means for actuating said oscillable members fromsaid firstnamed member to swing said arms outwardlyfitlgmpartsibeingonstruted' and arranged' that in the actuation of saidoscillabl'emembers'fromsaid'means, the oints 'of'engageinent between said arms" ansaid bandmove away from each other in an upward direction from fpositions below the ares. of; saidl'iisdllablm g r H IQL In' a' weighing=mechanishi, the oombination of a member add 'd to be shifted bythe'rapplieation of 'weig t thereto, a pair of oseillable membe1m wweight, connections nected with said "osei llable members eccentricallyof the" axes ef theflatter, and bands engaging the peripheries of said'oscillable "members supporting fthe latter in floatin condition 'and 7supporting said first-11am member from said oscillable members.

i3L' In a weighing mechanismfithe comhinationofa membe'r adapted toibeshifted by thevapplicatioh of" weight to {as mechanism, 'air ofosdillabie menibers. having arms-radiating therefrom wi ht, connectionsbetweenisaid s eighta'n said arms, said connections lieing:flbniblyazitohntttd with said arms; and bands engaging the pe-"nipherieswit-saidoscillablememberssngporting the latter il'ifflOMJiIlconditionvan supporting said-vfirst-name 5 member iromssaid oscillable'm'embersli l '14. In a weighing meohanism,the oombinationof'a memberada ted' to be shifted by the applicationofweig tthereto, dipair =of'oscill'able 5 members, :a; and 2 connected at its-ends withsaidbscillable 'inembers, eccentrically of the axes of the 1atter,-a.weight supported I from saidwband' be'tween the ends of the latter, andba'nds'engaging the peripheries of said oscillablemembers; supportingthe'latterin floating condition an su portingsaid firstrnam'ed' memberirom-sa1d osoillable"members. a

15.1w a "weighing mechanismythe combinatio'n' ofira ihembenada ted to beshifted by theeapplication-iif weig t thereto, a. it

of oscillable members, :a weight, connectlons betweenasaid weight. andsaid oscillable members; said con'nections' being flexibly connectedwith' said' 'oscillable members ec- 'centricall'y"ofzthe-axes-of thelatter, band- Inearis engaging the peripheries of said oscillablemembers and-supporting the latterin floating condition, and band-meansengaging theperipheries of said oscillable members and extendingdownwardly between the latt-erand in engagement therewith and con nectedat their lower portions with said first-named member.

16. In a weighing mechanism, the combination of a memberadapted to beshifted by the application ofweight thereto, a pair of oscillablemembers, a weight, connections between said weight and saidoscillablememhere, said connections being flexibly connected with saidoseillable members eccentrically of *the axes of the latter,band-meansenga ing the peripheries of said oscillablemem ers and supporting thelatter in floating condition, band-means engaging the peripheries ofsaid oscillable members and extending downwardly between the latter andin encushioning the movement tonormal position, of the parts actuatedthroligh said oscillable members comprising a cylinder containing aliquid and a plunger connected with the parts actuated through saidoscilliable members and operating 1n said cyliner. I

18'. In a weighing mechanism, the combination' of a member adapted to beshifted by the ap lication of weight thereto, a pair of 'oscilla lemembers, a weight, connections between said weight and saidoscillablemembers, said connections being flexibly connected with said oscillablemembers eccentrically-of the axes of the latter, means for rotating saidoseillable members from said first-named member, andmeans for cushioningthe movement to normal position, of the arts actuated throu h saidoscillable'memrs comprising a cylinder forming a section of saidfirst-named member and containing a liquid and a plunger connected withthe parts actuated through said oscillable'members and operating in saidcylinder.

MORTIMER B. MILLS. v

